Title:
回路秘匿装置、秘密計算システムおよびプログラム
Document Type and Number:
Japanese Patent JP6629461
Kind Code:
B2
Abstract:
At least any one of input keys KA0, KA1, KB′0, and KB′1 is set so that the input keys KA0, KA1, KB′0, and KB′1 which satisfy KA1−KA0=KB′1−KB′0=di are obtained, and an output key Kig(I(A), I(B)) corresponding to an output value gi(I(A), I(B)) is set by using the input keys KA0, KA1, KB′0, and KB′1, where input values of a gate that performs a logical operation are I(A), I(B)∈{0, 1}, an output value of the gate is gi(I(A), I(B))∈{0, 1}, an input key corresponding to the input value I(A) is KAI(A), and an input key corresponding to the input value I(B) is KB′I(B).
Inventors:
Kotaro Suzuki
Ryo Kikuchi
Kempuka Carmen
Ryo Kikuchi
Kempuka Carmen
Application Number:
JP2018550256A
Publication Date:
January 15, 2020
Filing Date:
November 09, 2017
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G06F21/71; G09C1/00
Foreign References:
| US20090175443 | ||||
| US20110211692 | ||||
| US20150341326 |
Other References:
KEMPKA, C., KIKUCHI, R., KIYOSHIMA, S. and SUZUKI, K.,Garbling Scheme for Formulas with Constant Size of Garbled Gates,Cryptology ePrint Archive,[online],2016年 6月,Report 2016/563,p.1-25,[2019年9月12日検索],URL,https://eprint.iacr.org/2016/563
Attorney, Agent or Firm:
Naoki Nakao
Yukio Nakamura
Yoshimura Munehiro
Yukio Nakamura
Yoshimura Munehiro